Last-block fastener



No. 625,705. Patented May 23, I899; J. E. SCOTT.

LAST BLOCK 'FASTENER.

(Appliciztion filed Jan. 9, 1899.\

N0 Model.)

attozwu o f NITED STATES PATENT OFFICE.

JOHN E. SCOTT, OF PHILADELPHIA, PENNSYLVANIA.

LAST-BLOCK FASTENER.

SPECIFICATION forming part of Letters Patent No. 625,705, dated May 23, 1899.

' Application filed January 9, 1899- 1 (N0 Infi 1'0 alt whom it may concern.-

Be it known that 1, JOHN E. SCOTT, a citizen of the United States, residing at' Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Last-Block Fasteners; and I do hereby declare the following to be a full, clear, and exact description of the invent-ion, such as will enable others skilled in the art to which it appertains to make and use the same.

My present invention relates to improvements in last-block fasteners of the type or class illustrated and described by me in an earlier application for patent, which applica tion is serially numbered 697,896. After considerable use of such a fastening device as is set forth in said earlier application I have been led to see that by slightly modifying the construction thereof I can produce an even superior article. It is naturally and obviously quite difficult to bore the socket in the body of the last into which the lower or inner end of the fastening-pin extends in every case to the same depth, and therefore I have found that at times when such socket was made slightly deeper than necessary the pin would pass entirely within the last and lastblock, so as to prevent or make quite difficult the access to the aperture provided for the tool or implement by which it is withdrawn. Again, when the last-block is detached from the last I have found that the pin was liable to be easily detached from such block and, being small, easily misplaced. To overcome these slight objections incident to the special embodiment of my invention which is illustrated in my said earlier application is the object of the present invention.

In the accompanying drawings, Figure 1 is a side elevation of a last embodying my improvements, the body of the fastening-pin being indicated in dotted lines. Fig. 2 is a view showing the last-block detached from the last and the lower end of'the pin engaging therewith to act as a stop against further outward movement. tening-pin.

Like letters of reference designate corresponding parts in the several figures of the drawings, referring to which A designates the last, and B the last-block,

Fig. 3 is a detail view of the fas-.

which latter is, as usual, adapted to fit in a seat formed in the last and to be detachablysecured therein. In the present case this fastening or securing of the last-block in its seat is accomplished by means of a spring-pin adapted to extend through a passage formed in the last-block and into an alined socket in the last. This pin G is, as in my aforesaid earlier application, preferably formed from a section of half-round or semicylindrical metallic rod or bar, which section is bent upon itself to form two arms,which naturally spread apart near their free ends, but are adapted to be forced close together when being inserted into the passage and socket provided therefor in the last-block and last.

The outer end of the split pin 0 is of such form as to lie practically flush with the adjacent surface of the last-block, and in the present construction such end is provided with one or more laterally-projecting ears 0, which extend slightly beyond the body of the pin and prevent it being forced into the passage in the last-block to such an extent as to cause the opening 0 to be covered. This opening, which is-designed to receive a suitable tool or implement bywhich the pin can be withdrawn. from engagement with the last, is formed by two alined grooves or notches cut in the inner flat faces of the two arms of the pin.

'The upper end of the pin 0 can be flattened slightly to form the ears 0, or these may be produced in any other suitable and desirable manner. I

One of the arms or members of the pin 0 is reduced in thickness for a considerable por-- tion of its length by being cut away on its outer face, as at D, and there is thus formed at the free end of said arm a laterally-pr jecting finger d. The free end of the other arm of the pin is preferably beveled, as shown in the drawings.

The pin Q is of such size at its upper and lower ends and transversely throughout its length in one direction as to snugly fit within the passage in the last-block and the socket in the last, and thereby the last-block is securely held in proper position. However, as soon as said pin has been moved longitudinally sufficiently far to permit the last-block to be lifted from its seat and the body of the pin above the cut-away or reduced portion D has passed above the last-block the elasticity of the arm carrying the hook at will cause it to move laterally and bring the said luginto engagement with the under side of the lastblock, at one side of the passage therein, as shown in Fig. 2. This, it will be seen, acts to prevent the pin from being entirely disengaged from the last-block, and yet When it is desired to remove the pin a slight pressing together of the arms of the pin near their up per ends moves the lug 07, into alinement with the passage in the last-block.

It may be found desirable to slightly enlarge the upper end of the socket in the last in order that there may be no doubt of the lug d engaging with the last-block; but ordinarily it will be found that this is not neces sary, as it is not necessary to entirely withdraw the pin from such socket to permit the last-block to be removed.

The manner of constructing and using my improvements is believed to be clearly disclosed by the above description and the drawings, and the advantages incident thereto will be readily appreciated.

I do not herein make any claim incident to the features of novelty common to both the subject-matter illustrated and described in this case and that presented in my aforesaid earlier application, Serial No. 697,896, preferring to make such claims in that case and to claim in this application only the features of novelty incident to the peculiar embodiment of the invention herein illustrated.

Having thus fully described my invention,

which automatically engages with the lastblock when the pin is disengaged from the last, substantially as and for the purpose set forth.

2. The combination with a last and a lastblock therefor, of a pin consisting of two spring-arms adapted to extend through a passage in the last-block and into a socket in the last, one of said arms being adapted to move laterally and engage with the inner surface of the last-block when the pin is removed from the socket in the last, substantially as set forth.

3. The herein-described pin for detachably connecting a last-block to its last consisting of two diverging spring-arms, one of which is provided at one end with a laterally-projecting lug, substantially as and for the purpose set forth.

4. The herein-described pin for securing a last-block to its seat in a last consisting of two spring-arms connected at one end by a head that extends laterally beyond the body of the pin and one of said arms having at its free end a laterally-extending lug or finger, substantially as set forth.

5. The herein-described pin for connecting a'last-block to its last consisting of a single piece of metal bent to form two spring-arms connected by a head at one end, one of said arms being reduced in thickness at points intermediate of its length whereby a laterallyprojecting lug or finger is provided at its free end, substantially as set forth, for the purpose specified.

In testimony whereof I affix my signature in presence of two witnesses.

JOHN E. SCOTT.

WVitnesses:

Jos. R. EDsoN, HERBERT D. LAwsoN. 

